[clang][cli] Add MarshallingInfoEnum multiclass

This patch introduces a tablegen multiclass called `MarshallingInfoEnum`. It has the same semantics as `MarshallingInfoString` had in combination with `AutoNormalizeEnum`, but it's easier to use and follows the convention used for other `MarshallingInfoXxx` multiclasses.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D97375

1 files changed, 5 insertions, 6 deletions

diff --git a/clang/docs/InternalsManual.rst b/clang/docs/InternalsManual.rst
index da17d72..ec01875 100644
--- a/clang/docs/InternalsManual.rst
+++ b/clang/docs/InternalsManual.rst
@@ -940,23 +940,22 @@ and the result is assigned to the key path on success.
 
 **Enumeration**
 
-The key path defaults to the value specified in ``MarshallingInfoString``
-prefixed by the contents of ``NormalizedValuesScope`` and ``::``. This ensures
-correct reference to an enum case is formed even if the enum resides in different
+The key path defaults to the value specified in ``MarshallingInfoEnum`` prefixed
+by the contents of ``NormalizedValuesScope`` and ``::``. This ensures correct
+reference to an enum case is formed even if the enum resides in different
 namespace or is an enum class. If the value present on command line does not
 match any of the comma-separated values from ``Values``, an error diagnostics is
 issued. Otherwise, the corresponding element from ``NormalizedValues`` at the
 same index is assigned to the key path (also correctly scoped). The number of
 comma-separated string values and elements of the array within
-``NormalizedValues`` must match. The ``AutoNormalizeEnum`` mix-in denotes the
-key path option should be treated as an enum and not as a string.
+``NormalizedValues`` must match.
 
 .. code-block::
 
   def mthread_model : Separate<["-"], "mthread-model">, Flags<[CC1Option]>,
     Values<"posix,single">, NormalizedValues<["POSIX", "Single"]>,
     NormalizedValuesScope<"LangOptions::ThreadModelKind">,
-    MarshallingInfoString<LangOpts<"ThreadModel">, "POSIX">, AutoNormalizeEnum;
+    MarshallingInfoEnum<LangOpts<"ThreadModel">, "POSIX">;
 
 ..
   Intentionally omitting MarshallingInfoBitfieldFlag. It's adding some